@smoussie I think you've misunderstood my point.
Q: Why do the insurgents have the M16A2 and not the newer more available M16A4, especially if they could buy it off the internet?
A: For gameplay and thematic sake.
Q: So why would the insurgents get the older MP5A2 and not the MP5A5 that the security team will be getting?
A: For gameplay and thematic sake (It's new content, so both teams get to enjoy using an MP5)
Q: Why would the insurgents get an older ACOG model and not the newer ACOG model the security team should have?
A: Thematic sake.
Q: If the insurgents really had access to the internet, why wouldn't they buy and use M16A4's instead of A2's or AK-12's instead of AKM's?
A: Because the reality of logistics isn't emphasized in this game. The team's gear are more thematically based. Giving the security team the ACOG and giving the Insurgents an older ACOG model is literally following the pre-existing thematic patterns already in the game.
You know what doesn't make any sense? The INS:S damage model. Mic drop